Unable to edit the audio tracks

Hey guys and gals ,

I have 2 audios imported in Audacity by File >> Import >> Audio
But when I select some part of any audio track , editing options , Effects options are disabled http://prntscr.com/6fqyv2
Can anyone tell me what am I doing wrong ? And how would I solve this

Thank you …

Look at the green triangle above the blue waves. That shows you are playing or paused. Press the yellow Stop button. See http://manual.audacityteam.org/o/man/faq_editing.html#grayed.